Finding the Fourth Proportional to 404.25, 557.88 and 229.62
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Solution
The fourth proportional to 404.25, 557.88 and 229.62 is: 316.88
Step by Step Solution
- Step 1: Write the proportion equation
404.25 : 557.88 = 229.62 : x - Step 2: Convert to fraction form
404.25/557.88 = 229.62/x - Step 3: Cross multiply
404.25x = 557.88 × 229.62 - Step 4: Simplify right side
404.25x = 128,100.41 - Step 5: Solve for x
x = 128,100.41/404.25 - Step 6: Final answer
x = 316.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.